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**Gerasimov****Member**- Registered: 2013-09-17
- Posts: 1

I'm from Ukraine.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

Hi Gerasimov;

Welcome to the forum.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**anonimnystefy****Real Member**- From: Harlan's World
- Registered: 2011-05-23
- Posts: 16,000

Hi Gerasimov

Welcome to the forum!

*Last edited by anonimnystefy (2013-09-18 20:22:09)*

Here lies the reader who will never open this book. He is forever dead.

Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment

The knowledge of some things as a function of age is a delta function.

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,525

hi Gerasimov

Welcome to the forum.

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

hi....

i recently joined this forum.

please help me by suggesting some intresting topics for my seminar.

by

prathima

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

Hi prathima;

Welcome to the forum. Interesting topics on what?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

in mathematics

actually i selected pattrens in nature. but this topic has less in maths and more about biology

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

What type of math do you like? What type are you good at? What is the age and type of the audience?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

i am doing M.sc now. my audience are classmates and my lecturers.

i like maths in nature and vedic maths. maths in nature means topic like role of fibonacci sequence in nature.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

Then you can do it about the Fibonacci Sequence. There is probably more literature on that sequence than all the rest put together. There is even a journal devoted to it.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

which is that journal.. my time limit is 15min.

in that time i have to complete fractals, fibonacci spiral, farmats spiral, logarithmic spiral and other pattrens that exist in nature.

i dont have proper information regarding logarithmic spiral and Lindenmayer system in fractals

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

They call it The Fibonacci Quarterly.

I did some work with L systems when I was a beta tester for Mupad.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

ok... can you give me some explanation and some simple example on branching angle, distance between nodes and number of branches per branch point in L system. i saw an example on algae but i dint understand it.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

Hi;

Have you ever seen a Barnsley fern?

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

no...

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

Hmmm, is it wise to mention some topic that you know less than even I do? You could always leave it out...

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

what is your advice

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

I can give you some nice visual images for an L system but I am not an expert on them. They might make a nice display.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

okay.

then what are logarithmic spirals

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

A logarithmic spiral is best described right here.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

this is similar to fibonacci spirals

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

Yes very much so.

There is an online site that will generate L systems. It is better than mathematica for this job.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

thank you

which is that journal devoted to fibonacci sequence

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 102,858

It is called the Fibonacci Quarterly. A university library would have it in the reference section.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**

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**prathima****Member**- Registered: 2013-09-19
- Posts: 33

thank you

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